Automatic dishwashing detergent composition

Abstract

Bleach-containing automatic dishwashing cleaning composition including a new amylase.

What is claimed is: 
     
       1. A bleach-containing automatic dishwashing cleaning composition comprising an amylase wherein the amylase is a variant of a parent amylase having the amino acid sequence of SEQ ID NO:1 and the amylase has at least 90% identity with the amino acid sequence of SEQ ID NO:1 wherein the amylase comprises mutations in one or more of the following positions: A51T and/or S334T and wherein the position 202 of the amylase comprises a methionine. 
     
     
       2. A composition according to  claim 1  wherein the amylase comprises one of the following mutations:
 a) T246I and S334T; 
 b) T246L and S334T; and 
 c) A51T and T246I and S334T. 
 
     
     
       3. A composition according to  claim 1  wherein the amylase further comprises the following mutations M9L, R118K, G149A, G182T, D183*, G184*, G186A, N195F, T257I, Y295F, N299Y, R320K, M232T, A339S, E345R and R458K. 
     
     
       4. A composition according to  claim 1  wherein the composition is phosphate free. 
     
     
       5. A composition according to  claim 1  wherein the composition comprises a dispersant polymer. 
     
     
       6. A composition according to  claim 1  wherein the composition comprises a carboxylated/sulfonated polymer. 
     
     
       7. A composition according to  claim 1  comprising a complexing agent selected from the group consisting of methyl glycine diacetic acid, its salts and derivatives thereof, glutamic-N,N-diacetic acid, its salts and derivatives thereof, iminodisuccinic acid, its salts and derivatives thereof, carboxy methyl inulin, its salts and derivatives thereof, and mixtures thereof. 
     
     
       8. A composition according to  claim 1  wherein the composition comprises a manganese bleach catalyst. 
     
     
       9. A composition according to  claim 1  wherein the composition comprises a crystal growth inhibitor. 
     
     
       10. A composition according to  claim 1  comprising a protease. 
     
     
       11. A composition according to  claim 1  comprising:
 a) from about 0.025 to about 0.3 mg of amylase per gram of the composition; 
 b) from about 0.2 to about 2 mg of protease per gram of the composition; 
 c) from about 5 to about 20% by weight of the composition of bleach; 
 d) from about 1 to about 40% by weight of the composition of a complexing agent; 
 e) from about 1 to about 10% by weight of the composition of a dispersant polymer; and
 wherein the composition is phosphate free. 
 
 
     
     
       12. A composition according to  claim 1  wherein the composition is in unit dose form. 
     
     
       13. A method of automatic dishwashing comprising the following steps:
 a) providing soiled dishware; 
 b) placing the dishware into an automatic dishwasher; 
 c) providing an automatic dishwashing cleaning composition according  claim 1 ; and 
 d) subjecting the dishware to a wash cycle of equal or less than 30 mins. 
 
     
     
       14. A method of automatic dishwashing comprising the following steps:
 a) providing soiled dishware; 
 b) placing the soiled dishware into an automatic dishwasher; 
 c) providing an automatic dishwashing cleaning composition according to  claim 1 ; and 
 d) subjecting the dishware to a wash cycle at a temperature of 50° C. or below. 
 
     
     
       15. A composition according to  claim 5 , wherein the dispersant polymer is a sulfonated derivative of polycarboxylic acid.